Most of us agree that the rubber seal was left off the Crossfire Driver-Side due to the mis-alignment of the wiper arm shaft & the hole in the cowling. Daimler-Chrysler just left this side open, never dealing with the design flaw in the cowling. Nearly all of us that have installed a rubber seal on the Driver-Side have executed some sort of modification and/or technique to get the rubber seal to fit. Good Luck.